/* Huy hiệu nhà mạng: chữ thuần, không dùng logo chính thức. */
.isp-badge{--c1:#64748B;--c2:#3F4A5A;display:inline-flex;align-items:center;justify-content:center;min-width:112px;height:46px;padding:0 18px;border-radius:14px;
 background:linear-gradient(180deg,color-mix(in srgb,var(--c1) 70%,#fff) 0%,var(--c1) 45%,var(--c2) 100%);
 color:#fff;font-weight:800;font-size:19px;letter-spacing:.2px;text-shadow:0 1px 0 rgba(0,0,0,.35);white-space:nowrap;
 box-shadow:inset 0 2px 0 rgba(255,255,255,.45),inset 0 -3px 0 rgba(0,0,0,.18),0 4px 0 var(--c2),0 8px 14px rgba(11,37,69,.25)}
.isp-badge.isp-lg{min-width:120px;height:56px;font-size:22px}
.isp-viettel{--c1:#EE0033;--c2:#A80024}
.isp-vnpt{--c1:#0A6FD6;--c2:#064C96}
.isp-fpt{--c1:#F37021;--c2:#B84E10}
.isp-cmc{--c1:#1C3F94;--c2:#122B66}
.isp-mobifone{--c1:#0B63B6;--c2:#08457F}
.isp-sctv{--c1:#00957A;--c2:#006653}
.isp-vietnamobile{--c1:#FF8A00;--c2:#C26600}
.isp-other{--c1:#64748B;--c2:#3F4A5A}